Don't try to open a wmi_handle for every call.
Don't try to open a wmi_handle for every call.

monicasarbu/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,monicasarbu/sigar,monicasarbu/sigar,boundary/sigar,boundary/sigar,boundary/sigar,boundary/sigar,boundary/sigar,boundary/sigar,monicasarbu/sigar,boundary/sigar,monicasarbu/sigar